CN-224213068-U - Additive feeding mechanism of foamed asphalt

CN224213068UCN 224213068 UCN224213068 UCN 224213068UCN-224213068-U

Abstract

The utility model discloses an additive supply mechanism for foamed asphalt, which comprises an additive water tank, a water inlet pipe, a plunger pump, an electromagnetic flowmeter, a water outlet pipe, an overflow valve and a water pressure meter. The utility model has the advantages that water and additives with a certain proportion are respectively added into the additive water tank from the water inlet cover and the additive inlet pipe, after the mixing is finished, the mixed solution of the water and the additives is added into the warm mix asphalt foaming device through the water outlet pipe under the action of the plunger pump after the first ball valve is opened, the electromagnetic flowmeter can accurately control the adding amount, when the water pressure gauge detects that the pressure is too high, the overflow valve can be opened to reflux the redundant mixed solution into the additive water tank through the water return pipe, so that the waste of resources is avoided, the excessive consumption of the additives is avoided, and the stable performance of the foamed asphalt is ensured. The selective arrangement of the filter screen or the filter avoids the blockage of the pipeline and improves the use stability of the equipment.

Inventors

LI SHIHONG
JIN LAN
SHAN GUOJIAO
LI SIJUN
WANG YUWEI
SHAN YANGYANG
WANG JUWEI
YU TAO
DU XIAOSHUAI
JIN YONGBO

Assignees

云南交投公建工程养护有限公司

Dates

Publication Date: 20260508
Application Date: 20250527

Claims (8)

1. The additive supply mechanism for the foam asphalt is characterized by comprising an additive water tank (1), a water inlet pipe (3), a plunger pump (5), an electromagnetic flowmeter (6), a water outlet pipe (12), an overflow valve (8) and a water pressure meter (9), wherein the additive water tank (1) is communicated with the plunger pump (5) through the water inlet pipe (3), the plunger pump (5) is communicated with one end of the electromagnetic flowmeter (6) through a pipeline, the water outlet pipe (12) is communicated with the other end of the electromagnetic flowmeter (6), the water outlet pipe (12) is communicated with the electromagnetic flowmeter (6) through a four-way pipe (7), and the overflow valve (8) and the water pressure meter (9) are also communicated on the four-way pipe (7).
2. The additive supply mechanism for foamed asphalt according to claim 1, wherein the additive tank (1) is in communication with the water inlet pipe (3) through a first ball valve (2).
3. The foam asphalt additive supply mechanism according to claim 1, wherein the end of the water outlet pipe (12) far away from the four-way pipe (7) is provided with a second ball valve (10).
4. The additive supply mechanism for the foamed asphalt according to claim 1 is characterized in that a water inlet cover (101) is arranged at the upper end of the additive water tank (1), an additive inlet pipe (102) is arranged on the side wall of the additive water tank (1), and a support (103) for fixing is connected to the lower end of the additive water tank (1).
5. The additive supply mechanism for foamed asphalt according to claim 1, wherein the plunger pump (5) is a corrosion-resistant high-pressure plunger pump.
6. The additive supply mechanism for foamed asphalt according to claim 1, wherein the overflow valve (8) is communicated with a water return pipe (11) on the side wall of the additive tank (1).
7. The additive supply mechanism for foamed asphalt according to any one of claims 1 to 6, wherein a filter screen (14) is fixedly connected to the inside of the additive tank (1) near the water inlet end of the water inlet pipe (3).
8. The foam asphalt additive supply mechanism according to any one of claims 1 to 6, characterized in that the water inlet pipe (3) is provided with a Y-shaped filter (4).

Description

Additive feeding mechanism of foamed asphalt Technical Field The utility model relates to the technical field of foam asphalt additive supply, in particular to an additive supply mechanism for foam asphalt. Background In the field of road construction, the warm mix asphalt concrete mixing technology has become an important development direction for replacing the traditional hot mix process due to the remarkable energy saving and emission reduction advantages. The technology reduces the mixing temperature of the mixture, effectively reduces the fuel consumption and the emission of greenhouse gases, and improves the construction environment. However, the conventional warm mixing technology is improper in the supply mode of the additive, and the condition that a pipeline is blocked is easily caused due to insufficient accurate addition amount, so that the performance of the foamed asphalt is reduced. Disclosure of utility model The utility model aims to provide an additive supply mechanism for foamed asphalt. In order to solve the technical problems, the technical scheme of the utility model is as follows: The additive supply mechanism for the foamed asphalt comprises an additive water tank, a water inlet pipe, a plunger pump, an electromagnetic flowmeter, a water outlet pipe, an overflow valve and a water pressure meter, wherein the additive water tank is communicated with the plunger pump through the water inlet pipe, the plunger pump is communicated with one end of the electromagnetic flowmeter through a pipeline, the other end of the electromagnetic flowmeter is communicated with the water outlet pipe, the water outlet pipe is communicated with the electromagnetic flowmeter through a four-way pipe, and the four-way pipe is also communicated with the overflow valve and the water pressure meter. Further, the additive water tank is communicated with the water inlet pipe through a first ball valve. Further, one end of the water outlet pipe, which is far away from the four-way pipe, is provided with a second ball valve. Further, the upper end of the additive water tank is provided with a water inlet cover, the side wall of the additive water tank is provided with an additive inlet pipe, and the lower end of the additive water tank is connected with a bracket for fixing. Further, the plunger pump adopts a corrosion-resistant high-pressure plunger pump. Further, the method comprises the steps of, and the overflow valve is communicated with the side wall of the additive water tank through a water return pipe. Further, a filter screen is fixedly connected to the inner part of the additive water tank close to the water inlet pipe. Further, a Y-shaped filter is arranged on the water inlet pipe. The utility model has the beneficial effects that: the method comprises the steps of adding water and additives in a certain proportion from a water inlet cover and an additive inlet pipe respectively in an additive water tank, adding a mixed solution of water and additives into a warm mix asphalt foaming device through a water outlet pipe under the action of a plunger pump after the mixing is completed and opening the first ball valve, accurately controlling the adding amount by an electromagnetic flowmeter, and refluxing the redundant mixed solution into the additive water tank through a water return pipe by opening an overflow valve when the water pressure gauge detects that the pressure is too high, so that the waste of resources is avoided, the excessive consumption of the additives is avoided, and the stability of the foamed asphalt is ensured. The selective arrangement of the filter screen or the filter avoids the blockage of the pipeline and improves the use stability of the equipment. Drawings FIG. 1 is a top view of the present utility model; FIG. 2 is a side view of the present utility model; FIG. 3 is a schematic view of a screen mounting location. In the drawing the view of the figure, 1-An additive water tank, 2-a first ball valve, 3-a water inlet pipe, 4-a Y-shaped filter, 5-a plunger pump, 6-an electromagnetic flowmeter, 7-a four-way pipe, 8-an overflow valve, 9-a water pressure meter, 10-a second ball valve, 11-a water return pipe, 12-a water outlet pipe and 14-a filter screen; 101-water inlet cover, 102-additive inlet pipe, 103-bracket and 104-joint. Detailed Description The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other. Referring to figures 1-3, the additive supply mechanism for foamed asphalt comprises an additive water tank 1, a water inlet pipe 3, a plunger pump 5, an electromagnetic flowmeter 6, a water outlet pipe